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import unittest

import IECore
import IECoreScene

import Gaffer
import GafferTest
import GafferScene
import GafferSceneTest

class DeleteOutputsTest( GafferSceneTest.SceneTestCase ) :

	def test( self ) :

		plane = GafferScene.Plane()

		outputs = GafferScene.Outputs()
		outputs["in"].setInput( plane["out"] )

		deleteOutputs = GafferScene.DeleteOutputs()
		deleteOutputs["in"].setInput( outputs["out"] )

		# test that by default the scene is passed through

		self.assertScenesEqual( plane["out"], deleteOutputs["out"] )
		self.assertSceneHashesEqual( plane["out"], deleteOutputs["out"], checks = self.allSceneChecks - { "globals" } )

		# test that we can delete options

		outputs.addOutput( "test", IECoreScene.Output( "fileName", "type", "data", {} ) )

		g = deleteOutputs["out"]["globals"].getValue()
		self.assertTrue( "output:test" in g )

		deleteOutputs["names"].setValue( "test" )

		g = deleteOutputs["out"]["globals"].getValue()
		self.assertFalse( "output:test" in g )

if __name__ == "__main__":
	unittest.main()
